Handy visual explanation of all the different triangle categories.

via Wikipedia

A worksheet I made last year about building marshmellow towers using the properties of shapes (ie – you should use triangles!)

I’ve created a fairly basic but effective poster pack of the Math Mr Men. It’s the UK version (trapezium) but you could just take that one out if you wanted.

Enjoy. math-mr-men-poster-pack

I’ve also uploaded it to the TES website here.

A great YouTube video showing (without words) the properties of triangles.

A presentation introducing Tangrams, followed by the rather essential tangram-set

and finally, a bunch of printable sets of tangram puzzles

Yeah I don’t stop for Christmas. (It’s the 21st of October as I write this ðŸ˜€ )

LOGO is a brilliant resource that lends itself particularly nicely towards practising external angles. Getting students to draw a range of shapes will require them to plug in the *external* angles, not the internal ones.

I have just discovered this wonderful website. Geobunnies posts out geometric images and animated gifs, using cute bunnies because… well I suppose because **bunnies. **I’m not sure this could be any more amazing if it tried. Geobunnies is also on twitter.

I mean it includes Sangaku for goodness sake! My life is complete.